We can add cli valueHelp for best understanding which data need exactly, replace <text> to 0-4094
vyos@vyos-rtr01# set interfaces ethernet eth0 vif Possible completions: > <text> Virtual Local Area Network (VLAN) ID vyos@vyos-rtr01# set interfaces ethernet eth0 vif-s Possible completions: > <text> QinQ TAG-S Virtual Local Area Network (VLAN) ID vyos@vyos-rtr01# set interfaces ethernet eth0 vif-s 1 vif-c Possible completions: > <text> QinQ TAG-C Virtual Local Area Network (VLAN) ID
Replace
vyos@vyos-rtr01# set interfaces ethernet eth0 vif Possible completions: > 0-4094 Virtual Local Area Network (VLAN) ID